Detecting wavelength and observing wavelike characteristics

$\lambda=\frac{h}{p}$

Abigail Urbina 1K
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Joined: Thu Jul 27, 2017 3:01 am

Detecting wavelength and observing wavelike characteristics

Is there a particular "threshold" in length that a wavelength must have in order for us to be able to detect the wavelength or observe its characteristics? What is considered "too small" for us to detect?

Johann Park 2B
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Re: Detecting wavelength and observing wavelike characteristics

Looking at my notes from one of the lectures, I remember Prof. Lavelle saying that anything ≤ 10-15m is too small to detect.

In the examples he used, a classical object had something of a wavelength of 1.64x10-34m, which is way too small. While for example, an electron at 5.3x106m/s would result in a wavelength of 1.4x10-10m, which is normal.